Simulation of the Chip Formation and Temperature Distribution by the Fem

Abstract

The distribution of temperature, the deformations and the cutting forces in the cutting zone during chip formation are very important aspects of the process. Therefore, they have great influence in results of machining. Tool wear, the precision of the machining operations and the finishing superface are some of the results that affect the economy of the process. This study has the objective of an evaluation offered potentialities for simulating chip formation using Finite Element Method (FEM). Four models with sufficiently different principles are used to exploring the most recent innovations. In the models, WC tools coated TiN was used to machine AISI 4340 steel. The simulations provide a study and detailed examination of temperature distribution, deformations, cutting forces, flow of material and an enormous amount of information that could be useful for the analysis of new processes and optimization of existing processes. Additionally, they open new horizon in the study of the chip formation. The simulations also demonstrate the complexity of the chip formation process, which creates many difficulties for its analysis using based analytical equations in constants. Some comparisons are established with experimental results found in temperature measurements.

Effects of High pressure coolant on machining temperature and machinability of AISI 304 stainless steel

“…The penetration causes shear deformation of the workpiece in order to remove material from the surface in the form of chips. During the formation of chips, the mechanical energy applied by the insert converts to heat energy [1]. Plastic deformation of the work material and friction between tool rake face, and flowing chips foster intense amount of heat at the cutting zone [2].…”